Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 331 [Rate centres in NPA 331] [Dial plan for NPA 331]

NXX: 465

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
331-465 A West Chicago IL BFGVILASG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358      
331-465 0 West Chicago IL BNSVILDGDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2009-04-11   
331-465 1 West Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-03-05   
331-465 2 West Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-09-10   
331-465 3 West Chicago IL CHCGILWUX1X  4717 PAETEC COMMUNICATIONS, INC. - IL 358   2008-11-20   
331-465 4 West Chicago IL CHCGILMF2MD  6529 T-MOBILE USA, INC. 358   2008-03-28   
331-465 5 West Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-10-30   
331-465 6 West Chicago IL CHCGILWUX1X  8760 US XCHANGE OF ILLINOIS LLC DBA CHOICE ONE COMM IL 358   2009-11-06   
331-465 7 West Chicago IL CHCGILTCDS4  7056 XO ILLINOIS, INC. 358   2009-01-01   
331-465 8 West Chicago IL   515J IP HORIZON LLC 358   2021-06-26   
331-465 9 West Chicago IL CHCGILWBXDZ  984E BANDWIDTH.COM CLEC, LLC - IL 358   2008-12-12   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.